Tamiya Miniature 4-Speed Crank Axle Gearbox Kit with Motor

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Tamiya Miniature 4-Speed Crank Axle Gearbox Kit with Motor

Tamiya Miniature 4-Speed Crank Axle Gearbox Kit with Motor
Starting at $10.75
List Price: $11.95
Now Only!: $10.75
Item #:
85079
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Description

Easy-to-Assemble Gearmotor for Animation and Robotics

This 4-speed crank axle gearbox is small but has a lot of power. There are four gear ratios to choose from, including the slowest ratio that allows for two rotations per minute. Two crank arms are included for added flexibility in the design of projects. Use this miniature gearbox to revolve model signs, operate miniature construction equipment, rotate circus displays and more! Easy assembly steps and illustrated instructions show you which gears to select for the output speed you need. Gearbox includes housing with mounting feet, an assortment of gears, battery-powered motor,* and assembly hardware. Batteries not included. See comparative table below for specifications.

TAMIYA GEARBOX REFERENCE CHART
Item # Tamiya # Description Gear Type No load rpm at nominal motor voltage*
85084 70189 4-speed with mini motor Worm/spur gears 88, 42, 20, 9
85083 70188 8-speed with mini motor Crown/spur gears 842, 663, 401, 316, 191, 150, 80, 72
85085 70190 12-speed with mini motor Pinion and spur gears 1360, 1224, 647, 583, 308, 277,
147, 132, 70, 63, 33, 30
85092 72008 4-speed high efficiency Worm/spur gears 120, 47, 18, 7
85091 72007 4-speed high power Pinion/spur gears 255, 212, 163, 136
85090 72005 6-speed high efficiency Pinion/spur gears 870, 338, 132, 51.3, 19.9, 7.8
85086 72001 Planetary Planetary/ring spur gears 3000, 2400, 750, 600, 480, 150, 120, 30
85078 70103 3-speed with mini motor Worm/spur gears 120, 45, 17
85079 70110 4-speed with mini motor Worm/spur gears 95, 27, 8, 2
85080 70168 4-speed with 2 mini motors Independent double gearbox 945, 315, 105, 35
85081 70151 Dual AA battery box    
*Nominal voltage 3.0 to 4.5 volts DC depending on model. To reverse, change input polarity. Can also be powered with a speed control-equipped DC power pack.
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